/*
 * SonarQube
 * Copyright (C) 2009-2017 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.api.ce.measure;

import javax.annotation.CheckForNull;

/**
 * Component that can be used in a {@link MeasureComputer}
 *
 * @since 5.2
 */
public interface Component {

  enum Type {
    PROJECT, MODULE, DIRECTORY, FILE, VIEW, SUBVIEW
  }

  Type getType();

  String getKey();

  /**
   * The attributes of the Component if it's type is File.
   *
   * @throws IllegalStateException if the Component's type is not {@link Type#FILE}
   */
  FileAttributes getFileAttributes();

  interface FileAttributes {

    boolean isUnitTest();

    @CheckForNull
    String getLanguageKey();

  }
}
